#include <bits/stdc++.h>
using namespace std;

void fast_io() {
	ios_base::sync_with_stdio(false);
	cin.tie(nullptr);
}

int main() {
	fast_io();
	int x, y;
	cin >> x >> y;
	cout << 4 << endl;
	cout << x << " " << y << " " << y << " " << y << endl;
	int ans;
	cin >> ans;
	cout << ans << endl;
}